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php

PHP 基础

PHP变量以$

字符串模板 : $temp = “Hello , {$var1} !”;

if语法:(注:是 elseif 不是else if)

if(true){

}elseif(false){

}else{

}

while语法:

while(true){ 

}

数组语法:

array(key=>value,key=>value)

[key=>value,key=>value]  //映射类数组

[value1,value2]  //顺序类数组

count($array) //返回数组长度

数组迭代:

foreach($array as $key => $value){

}

foreach ($array as $value){

}

函数:

function($variable){

return $value

}

模块: 通过require引入某个文件 通过use 引入命名空间

require “another.php”

use “/Robin/luo/Another”

类:

class Another {

public $property

public function __construct($property){

this->property = $property;

}

public function func($param){

return $value;

}

public static function func1(){

}

}

$object = new Another();

$object1 = new Another(1);

$object->property = 1;

$object->func(1);

Another::func1();

命名空间:通过namespace 定义 用\进行解析不是java的.

namespace Robin;

\Robin\luo::reading();

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